Miscarriage or abnormal period

I been bleeding since Thursday the last two days I been bleeding heavy and there is a horrible Oder then if I were to have my period the Oder is stronger and I been passing a lot of clots I'm thinking about calling my ob on Monday and making an opt  with my ob but if someone can give me a suggestion on this whole thing oh I also been cramping more then if I had my period the cramps come and go and starts in the middle n goes down then they stop if u can help it would be good no negativity on coments please